Free tool

Mars Sign Calculator

Your Mars sign is the sidereal sign Mars occupied at birth — the planet of drive, courage, and how you assert yourself and take action.

Computed using Swiss Ephemeris and the Lahiri ayanamsa.

Date of birth

Time of birth (optional)

Without a birth time, this uses noon on your birth date. Mars changes sign every about 45 days — if you were born near a sign change, your result may differ.

Birthplace (optional)